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Technical Data
Note:
For the USA, only FCC Part 68 registered data circuit terminal equipment should
Note:
be connected to the WAN Ports.
For X21, V24/28 and V35 variants, pins 7 and 25 are connected as follows:
X21: Pin 7 is connected to pin 6
V24/28: Pin 25 is connected to pin 6
V35: Pins 7 and 25 are connected to pin 6
X.21 WAN Cable
Sap Code:
This cable is used to connect a WAN port to a digital leased line.
The cable consists of the following properties:
G150 Plug: 37 Way D-Type plug with UNC 4-40 locking screws.
Other Equipment Plug: 15 Way D-Type plug with M3 locking screws.
Cable Core: 6 twisted pair screened cable - each core is 7/0.203mm (24 AWG) tinned
copper stranded wire, nominal capacitance of 98pF/m, impedance of 77
screened with aluminized tape and a tinned copper wire drain.
Cable Length: 3 meters/9.84ft.
Pin Connections
Pin 19 at the G150 end is connected to the Screened Cable Drain Wire.
Table 37: Pin Connections
G150 Plug
1
20
4
23
24
5
2
21
194 Installation and Configuration of the G150 Media Gateway
Name
Receive (Rx-B)
Receive (Rx-A)
Transmit (Tx-A)
Transmit (Tx-B)
Control (Ctl-A)
Control (Ctl-B)
Indicate (Ind-A)
Indicate (Ind-B)
Cable Notes
Other Plug
Twisted Pair
11
Twisted Pair
4
Twisted Pair
2
Twisted Pair
9
Twisted Pair
3
Twisted Pair
10
Twisted Pair
5
Twisted Pair
12
at 1MHz,
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